PITTSBURGH — Jose Reyes is getting the day off and Luis Ayala is in the house as the surging Mets try to complete a four-game sweep of the Pirates this afternoon. John Maine will be on the mound for the Mets, who are 6-0 on this trip going into today’s finale and have won nine of their past 11 to go two games up on the Phillies in the NL East.

Jerry Manuel said Maine is likely to last no more than 100 pitches, so there’s a good chance the righty Ayala will make his first appearance as a Met since being acquired from the Nationals on Sunday. The Mets sent rookie Eddie Kunz to Triple-A New Orleans to make room for Ayala.

As for the lineup, Reyes is being rested for the stretch run with the Mets in the midst of a streak of 23 consecutive games. Damion Easley is filling in at short, while second baseman Argenis Reyes will take over Jose Reyes’ leadoff spot.

Here is the overall order for the 68-56 Mets:

Argenis Reyes 2B

Nick Evans LF

David Wright 3B

Carlos Beltran CF

Carlos Delgado 1B

Fernando Tatis RF

Damion Easley 2B

Ramon Castro C

John Maine RHP (10-7, 3.97)

The 55-68 Pirates, losers of four in a row, will look like this:

Nate McLouth CF

Freddy Sanchez 2B

Ryan Doumit C

Adam LaRoche 1B

Jason Michaels LF

Andy LaRoche 3B

Steve Pearce RF

Jack Wilson SS

Paul Maholm LHP (8-7, 3.69)

Game time: 12:35 p.m.

TV-radio: SNY, WFAN.